With Evolution it is possible to use a Google Calendar as a read-only webcalendar. To get some 2-way action between the calendars of Evolution en Google, some extra work needs to be done. I managed to get things working using the SyncEvolution package and the ScheduleWorld free SyncML service. ScheduleWorld supports the Google Calendar and any SyncML-aware device or application around.

An excellent howto on setting this up (written for ubuntu) can be found at the ubuntuforums.org
I've compiled a .deb file of SyncEvolution 0.5-1 for Ubuntu Feisty Fawn (7.04) on a i686.



packages:

all:
syncevolution_0.5.1 source package

Ubuntu 7.04:
http://xs4all.nl/~mpepping/log/syncevolution_0.5-1_i386.deb

Fedora 6:
hany.sk/~hany/_data/RPM/doors-fc6/x86_64/syncevolution-0.5-1.fc6.x86_64.rpm
hany.sk/~hany/_data/RPM/doors-fc6/i386/syncevolution-0.5-1.fc6.pentium4.rpm
hany.sk/~hany/_data/RPM/doors-fc6/i386/syncevolution-0.5-1.fc6.i686.rpm
hany.sk/~hany/_data/RPM/doors-fc6/i386/syncevolution-0.5-1.fc6.i586.rpm
hany.sk/~hany/_data/RPM/doors-fc6/i386/syncevolution-0.5-1.fc6.i386.rpm
hany.sk/~hany/_data/RPM/doors-fc6/i386/syncevolution-0.5-1.fc6.athlon.rpm


I wasn't able to find any openSUSE packages around, so grab the sourcepackage if you're a openSUSE user. Since it's easier to win the lottery than to get a openSUSE build-service account, you have to compile these for yourself.